Sam4s ER-5100? SERIES - 6-4 Printer Problem

6. Troubleshooting
6-4 SAM4S ER-5100II SERIES
End
Printer Problem
Y
N
Power Vcc
VPRT Ok?
Y
1. Refer to the Power Problem.
2. Check the Harness.
N
Sensor
OK?
1. Check the related Circuit and Pattern of 74HC14 (U20).
2. Check the printer harness.
3. Replace the printer.
Y
Line Feed
OK?
N
1. Check the CR_MOT Signal (CPU PR2)
2. Check the FEED_R & FEED_J signal. (PR4,PR5)
3. Check the related Circuit and Pattern(STA471;Q11).
4. Check the printer harness.
5. Replace the printer.
Y
N
Printing & Trig
OK?
1. Check HEAD_TRIG signal.(CPU W1)
2. Check the related Circuit and Pattern of NE555 (U23).
3. Check Head signal.(HD1~HD9)
4. Check head driver (STA471). & VPRT(+24V)
5. Check the printer harness.
6. Replace the printer or printer head.
CR MOT
Rotation OK?
N
1. Check the CR_MOT Signal (CPU PR2)
2. Check the Driver STA471(Q15)
3. Check the motor brake circuit.
4. Check the printer harness & Replace the printer
6-4 Printer Problem